Genome-wide analysis of poplar SAUR gene family and expression profiles under cold, polyethylene glycol and indole-3-acetic acid treatments
| Autor: | Wenfang Hu, Yan Xiang, Hanwei Yan, Luo Shuangshuang, Yue Wang, Feng Pan |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
0301 basic medicine Populus trichocarpa Physiology Plant Science 01 natural sciences Polyethylene Glycols 03 medical and health sciences Gene Expression Regulation Plant Arabidopsis Genetics Animals Gene family Gene Plant Proteins Segmental duplication Synteny Indoleacetic Acids biology Gene Expression Profiling fungi Intron food and beverages RNA biology.organism_classification Cold Temperature Populus 030104 developmental biology Multigene Family Genome-Wide Association Study 010606 plant biology & botany |
| Zdroj: | Plant Physiology and Biochemistry. 128:50-65 |
| ISSN: | 0981-9428 |
| Popis: | Small auxin-up RNA (SAUR) proteins play an important role in the regulation of plant growth and development. Here, we identified 105 SAUR genes and comprehensively analyzed them in Populus trichocarpa. Based on the phylogenetic relationships, the PtSAURs were classified into ten subfamilies. Of the 105 PtSAURs, 100 were randomly distributed along the nineteen chromosomes, while the remaining genes were located along unassigned scafoolds. These genes mainly evolved through segmental duplications. In total, 94 PtSAURs contained no introns, and each group had a similar conserved motif structure. A promoter analysis revealed various cis-elements related to growth, development and stress responses, and a synteny analysis established orthologous relationships among SAURs in Arabidopsis, rice, grape and poplar. The qRT-PCR and tissue expression analyses indicated that PtSAURs show different expression levels in various tissues in response to different treatments. PtSAUR53 was located on the nuclear and plasma membrane by conducting subcellular localization analysis. This study provides a comprehensive overview of poplar SAUR proteins and a foundation for further investigations for functional analysis of SAURs in poplar growth and development. At the same time, it will be valuable to further study the poplar SAUR genes to reveal their biological effects. |
| Databáze: | OpenAIRE |
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